Paul Brannen says Britain needs more trees not least because wood is a raw material that can be used by the emerging bioeconomy; while Peter Price defends Sheffield city council’s tree-planting policyJohn Vidal is absolutely...

Until recently the battle to avert catastrophic climate change – floods, droughts, famine, mass migrations – seemed to be lost. But with the tipping point just years away, the tide is finally turning, thanks to innovations...